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ASHRAE Gdl 12-2000
Minimizing the Risk of Legionellosis Associated with Building Water Systems
Provides specific environmental and operational guidelines that will contribute to the safe operation of building water systems to minimize the risk of occurrence of Legionellosis. This guideline is intended for use with nonresidential building systems and centralized systems in multifamily residential buildings. Intended for the use of designers, installers, owners, operators, users, maintenance personnel, and equipment manufacturers. Dual units of measurement.
American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. [ashrae]